Eyelet feeding mechanism for eyelet setting machines



Sept. 20, 1932. c. N. COLPITTS EYELET FEEDING MECHANISM FOR EYELET SETTING MACHINES Filed Nov. 15, 1950 2 Sheets-Sheet lnvenTon Cdvin Nflcdpfiia y H 4 M Sept. 20, 1932. c, N, COLPlTTs 1,877,813

EYELET FEEDING MECHANISM FQR EYELET SETTING MACHINES Filed Nov. 15, 1950 2 Sheets-Sheet 2 Calvin Cohaifls by HMJ 7 M QTAMML ATTys.

Patented Sept. 20, 1932 p UNITED. TATES PATENT OFFICE CALVIN N. COLPITTS, OF MALDEN, MASSACHUSETTS, ASSIGIQOR 110 AMERICAN WINDQW SHADE MACHINE COMPANY, 02E? BOSTON, MASSACHUSETTS, A. GQRiE-ORATION 'Q E MASSACHUSETTS EYELET- FEEDING MECHANISM FOR EYEIJET SETTING- MACHINES Application filed November 15, 193i). Serial. No. 195,534.

This invention relates to eyclet-settingma chines and particularly to the eyelet-f eding mechanism by which the eyelets are fed in dividually to the eyeletsetting devices. Theinvention is shown as applied to a combined drill and eyelet-setting device of the type i1- lustratcd in my co-pcnding application Serial No. 483,4t-16, filed September 22, 1930. The machine illustrated in said application is designed to set eyelets or grommets in a curtain shade and is constructed to first drill a hole through the stick in the bottom hem of a window shade andas part of the same operation to set an eyelet in the drilled hole. The inventiomhowever, is not limited in its use to the particular form of eyelet-setting machine illustrated in said application.

In order to give an understanding of the invention I have illustrated in thedrawings a selected embodiment thereof which will nowhe described after which the novel features will be pointed out in the appended claims. y y

In the drawings: Fig. 1 is a view showing a portion of a combined drill and eyelet-setting machine of. the. type illustrated in my above-mentioned application Serial No. 33,416 and illustrat- ..1ng my improved eyelet-feeding mechanism;

Fig. 2 is a reduced section through the hopper on the line 22, Fig. 3

Fig. 3 is an enlarged View of the hopper mechanism taken at right angles to Fig. 1;

Figs. 4 and 5 are views taken on the line "4 4C, Fig. 3 and illustrating the means for oscillating the agitating brush;

Fig. 6 is a sinnlar view showlng the positlon of the parts when the brush is thrown outof operation; .Inasmuch asthe present lnvention relates to the eyelet-feeding mechanism by which the eyelets are delivered from the hopper or magazine into position to be set, I have not myself with showing only a sufiicient part of themachine to enable the present invent-ion tobe understood.

1 indicates generally a portion of the tion at a and the lower end which receives the stick and in which the hole is drilled by the drill 3 is indicated at 5.

The machine also includes a hop er 6 for receiving eyelets I, and a raceway 8 y which the eyelets are delivered from the hopper into position to be set. The raceway 8 is so designed and constructed that the eyelet 7c at the lower end thereof will be inline with the drill so that as the drill spindle is low ered the drill will pass through the eyelet 7a and. into the stick at the end of the curtain thereby -to drill ahole therein. After the drill has enteredthe eyelet the raceway is moved backwardly into the dotted line position Fig. 1 in a manner similar to that described in the above-mentioned application and as the drillspindle continues its downward movement the end thereof, indicated at 2 in Fig. 1, forces the eyelet through the drill hole and co-operates with an anvil member 9 to set the eyelet. These operations are described more completely in the application above referred to.

As stated above the present invention re lates to the construction of the hopper and the raceway and the means for delivering the eyelets singly from the hopper to the race way.

The hopper or magazine 6 is preferably supported in an inclined position as shown and is provided in its bottom with an eyeletreceiving groove 10 of a width to receive the shanks .of the eyelets 7 but of less width than the diameter of the heads 11 of the eyelets. This eyelet-receiving slot 10 communicates at one end with the raceway 8, Thelatter is provided with a channel 12 of a size to receive the heads 11 of the eyelets and with a with the slot 10 and isadapted to receive the upper arc of its movement and during such; engagement the shaft 17 will be given a, part al rotation.

shanks of the eyelets. Any eyelet which is placed with its shank in theslot 10 as shown at the left in Fig. 2 will gravitate toward the lower end of the slot and from the lower end into the open upperend of theslot 13 ofthe raceway. The eyelets will then gravitate down the raceway toward the lower end thereof.

The raceway is soconstructed that the eye-. lets are delivered into the upper end of the raceway in an upright position, that is, with their heads at the upper ends and the shanks depending from the heads, and the lower end of the raceway is so shaped and designed that the bottom eyelet 7 a will be in an upright position axially aligned with the drill 3. It will be understood that the raceway is provided with suitable means at its lower end for retaining the end eyelet 7 0; in position but for allowing it to be withdrawn from the raceway when the latter is swung into dotted line position as shown in the abovementioned application. 7

The eyelets are deposited in the hopper 6 through an opening in the top thereof, which is adapted to be closedby a hinged cover member 14 and as they are thus deposited they will have indeterminate positions in said hopper.

Situated within the hopper is an oscillatory brush by which the eyelets are kept agitated, the agitation resulting in the deposit of eyelets in the eyelet-receiving slot 10. This brush comprises a head 15' having radiallyarranged tufts 16' of bristles: The brush is situated atthe bottom of the hopper sothat the bristles wipe over the peripheral portion of the bottom as the brush is oscillated. The brush is mounted on a shaft 17 which extends through the bottom of the hopper 6 andis journalled in a bearing member 18 extending from the under side of the hopper.

As stated above the brush is given an oscillatory movement for the purpose of keeping the eyelets 7 agitated and this oscillatory I movement is derived from a shaft 19 which is driven by some suitable driving mechanism and which carries the cam that controls the up and-down movement of the drill spindle ina manner similar to that shown in my said co-pending-application Serial No. 483,416,, This shaft, 19 carriesa disk 20 at its end which is provided with a cam projection 21 whichco-operates with two arms 22, 23 extending laterally from the shaft 17. The

two arms 22 and 21 are arranged one above the otherand also have an angular relation as shown in Flgs. 4t and 5. v

Assuming that the head 20 is rotating in 'the direction of the arrow Fig. 3 the cam projection 21 will engage the arm 22 while said cam projection is passing through the As the head 20 continues its will turn the shaft back to its initial position.

Fig. 4: shows the position of the parts corresponding to that in Fig. 3 with the cam projection 21 just engaging the arm 22 while vsaid projection is passing through the upper arc of-its travel. This engagement will turn the shaft 17 from the position shown in Fig. 4 to that shown in Fig. 5. When the disk 20 has made about a half rotation from the position shown in Fig. 3 the projection 21 will engage the arm 23 as shown in Fig. 5 and as the head 20 continues to rotate the shaft 17 will be returned to the position shown in Fig.

1-. The shaft is thus "given an oscillatory movement during which the tufts 16 of bristles agitate the eyelets 7 andduring such agitation some of the eyelets will become deposited in the groove 10 as shown in Fig. 2.

i I- have provided means for rendering the brush-oscillating mechanism inoperative whenever the eyelets begin to accumulate in the groove 10 faster than they are being used.

The shaft 17 has fast thereto a collar 25 provided with a handle 26. By means of this handle the shaft may be turned into the position shown in Fig. 6 wherein the arms 22 and 23 are located at the opposite side of'the shaft 17 from the disk 20. WVith the arms 22vand 23 in this position the disk 20 will rotate freely without giving an oscillatory movement to the shaft. l V

Theshaft may be held in this inoperative positionv by means of a spring-pressed ball 27 ,which is mounted in a recess '28'formed in V the boss 18 and which is adapted to engage a notch 29 formed in the collar 25. There are two notches 29. situated on opposite sides of y the collar and one of the notches will be in position to receive the ball-27 when the handle 26 is turned ,intothe position shown in Fig. 6 whereby the shaft will be held in this inoperative position. When the shaft is given a half rotation. the other notch 29 will come in line with the ball 27 but in this position the shaft is oscillated back and forth by the cam projection 21 and during this oscillating movement the ball 27 will click into and out of the notch 29.

The hopper 6 is shown as having a bracket member 30 rigid therewith which is pivoted to'the frame at 31 to allow the hopper and raceway to swing slightly for the purpose of moving the end of the raceway from the full to the dotted line position Fig. 1 during the eyelet-setting operation in a manner similar to that shown in my copending application Serial No.483,4:16. I

- I claim.

1., In an eyelet-setting machine, the combin ation with an eyelet-containing hopper, of, a raceway communicating therewith, an oscillatory brush in the hopper for agitating the eyelets, an oscillatory shaft on which the brush is mounted, an actuating shaft situated at right angles to the oscillatory shaft, two arms extending from the oscillatory shaft at different angular positions, a cam projection on the actuating shaft which engages the arms alternately as the actuating shaft rotates, thereby to oscillate said oscil- 1o latory shaft, and means to turn the oscillatory shaft into a position in which the arms are out of the path of movement of said cam projection. 1

2. In an eyelet-setting machine, the combination with an eyelet-containing hopper, of a raceway communicating therewith, a brush in the hopper for agitating the eyelets, an oscillatory shaft on which the brush is mounted, an actuating shaft situated at right angles to the oscillatory shaft, two arms extending laterally from the oscillatory shaft at different points axially of the shaft, and a cam projection on the actuating shaft adapted to engage said arms alternately as the ac g tuating shaft rotates thereby to oscillate the oscillatory shaft. 7

In testimony whereof, I have signed my name to this specification.

CALVIN N. COLPITTS. 

